baber/WOPTO huggingface dataset:
Patent GB-881855-A (GB)
Title: Elution of organic substances from ion-exchange resins
IPC: C07D499/18
Filed: 1958-05-09
Abstract: Heparin is recovered from a solution containing it by adsorption upon an ion-exchange resin and elution with a mixture of a watermiscible organic solvent, water and a salt.  Typical solvents are methanol, ethanol, isopropanol, ethylene glycol, dioxane, acetone, ethyl acetate and dimethylformamide.  A preferred elutrient is a mixture of water, methanol and ammonium chloride.  Sufficient water must be present in the solvent to permit ionization of the salt and its proportion may be as low as 1% or as high as 70%.ALSO:A process for the recovery of an ionic organic substance from a solution containing it by adsorbing the substance upon an ion-exchange resin and eluting it from the ion-exchange resin, characterised in that the elutrient is a mixture of a water-miscible organic solvent, water and a salt which is soluble in said solvent-water mixture, the elutrient also being a solvent for the ionic organic substance.  The salts must be ionic and may be inorganic or organic, e.g. acetate, propionate, butyrate, benzoate, chloracetate and amine salts.  Sufficient water must be present in the solvent to permit ionization of the salt and it may be as low as 1% or as high as 70% water.  Typical solvents are methanol, ethanol, isopropanol, ethylene glycol, dioxane, acetone, ethyl acetate and dimethylformamide.  A preferred elutrient is a mixture of water, methanol and ammonium chloride.  The ionic organic substances include both weak and strong organic acids and bases. Specified organic compounds are (a) the antibiotics penicillin, novobiocin, eulicin and cytovirin; (b) the vitamin p  B2 phosphate, vitamin K phosphate and vitamin B1; (c) the alkaloids morphine, quinine, yohimbine and resperine; (d) the acids gibberellic acid, desoxycholic acid, folic acid, palmitic acid, nicotinic acid and ascorbic acid.ALSO:Methyl orange is recovered from a solution containing it by absorption upon an ion-exchange resin and elution with a mixture of a water-miscible organic solvent, water, and a salt. Sufficient water must be present in the solvent to permit ionization of the salt and the proportion of water may be 1%-70%. The salt may be that of an organic or inorganic acid.  In an example a solution of methyl orange in ammoniacal water is passed through a column containing a strongly basic styrene-divinylbenzene resin or a weakly basic aminated polystyrene resin.  The resin is then eluted with a methanol/ammonium chloride aqueous solution.ALSO:Zinc insulin is recovered from an aqueous hydrochloric acid solution thereof by adsorbing it upon an ion exchange resin and eluting it therefrom with a mixture of a water-miscible organic solvent, water and a salt which is soluble in said water solvent mixture.  In the example, the zinc insulin is adsorbed upon Dowex 50-XI resin and eluted with an aqueous solution containing 70% ethanol and 3.5% sodium chloride.
Patent GB-571260-A (GB)
Title: Improvements in the heels of shoes and like articles of footwear
IPC: A43B21/24
Filed: 1943-09-14
Abstract: 571,260. Heels for footwear. WALPER, C. O. Sept. 14, 1943, No. 15086. [Class 17 (ii)] The tread surface of a heel 10 for footwear, especially galoshes, has a malformed portion forming an inwardly- and downwardly-directed declivity 12, Figs. 5 and 6, terminating in a tip or point 13 from which moisture collected on the tread surface when walking is thrown forward clear of the clothing. Such a declivity may be formed by attaching a shaped layer 14, Fig. 5, of relatively elastic compressible material to the tread face, or by inserting such a layer as 15, Fig. 6, in the heel adjacent the tread face. Specifications 501,437 and 570,969 are referred to.
Patent GB-593847-A (GB)
Title: Improvements in lock washers
IPC: F16B39/24
Filed: 1945-06-14
Abstract: 593,847. Lock washers. BARBER & COLMAN, Ltd., and LONG, F. June 14, 1945, No. 15134. [Class 89 (i)] Relates to lock washers of the kind having teeth set at an angle to the plane of the washer and consists in making the teeth of L- shape the longer limbs 18 trailing on the nut surface during tightening until the shorter limbs 20, more nearly normal to the surface, prevent further tightening of the nut when the edges 24 become embedded in the nut to resist unscrewing. The limbs are joined on the other surface of the washer by arcuate surfaces 22 that do not mar the surface of the work 30. In a modification the teeth are arranged with the surfaces 22 directed alternately to the two faces of the washer.
Patent GB-598077-A (GB)
Title: Improved hinges for doors and the like
IPC: E05D11/04
Filed: 1945-06-14
Abstract: 598,077. Hinges. DUNN, I. June 14, 1945, No. 15135. [Class 65 (ii)] A door is mounted on a pair of hinges comprising respectively a pin g, with a spherical enlargement in the middle, entering sockets c, d on the frame and door, and a ball h held between socket members k, i carried by the door and frame, the socket member i being adjustable by a screw j. In the form shown, both socket members k, i are formed as cup-headed pins fitting in sockets on the door and frame ; in a modification, the member i may be dispensed with and the ball h formed integral with a pin entering the socket f on the frame, and in this form the pin may be screwed into the socket f. The member i or the pin replacing it may rest on a spring above the screw j. Reference has been directed by the Comptroller to Specifications 7827/01, [Class 65], and 430,037.
Patent GB-350200-A (GB)
Title: Improvements in ball game apparatus for providing public amusement
IPC: A63F7/00
Filed: 1930-05-19
Abstract: 350,200. Games of skill. ORRIN-SMITH, E. H., Elmscott, Wildwood Rise, Golders Green, London. May 19, 1930, Nos. 15314, 15561, and 18088. [Class 132 (ii).] Ball game apparatus comprises a bowling table 1 which rises towards the rear where it merges into a rising track 5 having a ball receptacle 6 on the face thereof, lateral edges 4, 4a to the table and track, and a deflecting edge 4b at the top. This upper track is substantially horizontal in sections which are at right-angles both to the surface of the track and to the general direction of the track. The ball, of wood, metal or rubber, is rolled up the track and may pass into the pocket 6 which is attached to an arm 8 on a spindle 9 and is counterbalanced by a weight 12 adjustable on an arm 11 on spindle 9. A pointer 19 on the spindle indicates the number of balls which have passed into the pocket, the latter having a flap 7 which may be adjusted to vary the size of the opening. When a lever 14 is pulled a cable 13 rotates the lever 11 and spindle 9, rotating the pocket 6 until the end 15a of a door 15 meets a stop 16. The door opens and the balls pass through a guide 17 to gap x, subtable 2, and channel 3. Operation of handle 14 will also release by means of a finger 18 any balls already in the channel 3. In modifications: (1) the pocket 6 has several compartments each with an exit door and the counterweight is replaced by a spring ; (2) the receptacle 6 may be fixed to the face of the upper track, and a ball on passing through a compartment of the receptacle actuates a trigger to add the appropriate score to an indicator ; (3) an inclined but straight edge 4b may be used, with pins on the track in front of the receptacle; (4) a spiral guide edge may be formed as a continuation of the curved edge 4b of Fig. 1.
Patent GB-496656-A (GB)
Title: Improvements in lead alloys for bearings
IPC: C22C11/10
Filed: 1937-06-02
Abstract: A lead alloy for bearings consists of 60,5-73,2 per cent of lead, 1,5-4 per cent of nickel, 2,5-6 per cent of tin, 0,8-1,5 per cent of arsenic and 22-28 per cent of antimony.
Patent GB-529180-A (GB)
Title: Improvements relating to methods of obtaining copies of photographic images in colours
IPC: G03C7/26
Filed: 1939-05-23
Abstract: 529,180. Colour photography. ARAGONES, D. May 23, 1939, No. 15347. Convention date, June 15,1938. Drawings to Specification. [Class 98 (ii)] A three colour original is printed by contact or projection on to material carrying a lightsensitive material on each side of the support by printing one colour component image into one of the light-sensitive layers, rendering this layer translucent by means of a mordant bath, and printing another colour component image through this translucent layer and the support on to the inner side of the other light sensitive layer. The third colour component image is printed on to the outer side of this lightsensitive layer. Two colour component images are printed on to two emulsion layers on opposite sides of a celluloid or other support, and after development the layer on one side is iron-toned blue. The image on the other side is fixed and the blue-toned image is fixed for a short time to remove silver ferrocyanide, and may be temporarily bleached with a solution containing sodium sulphite and hydroquinone. The other image is rendered translucent by treatment with a copper sulphate-ammonium thiocyanate mordanting bath, and after the film has been dried the third image is printed through the translucent image and the support on to the inner side of the other layer, and the latent image produced is developed in an amidol developer and fixed. This image is then treated in a mordanting bath and at the same time the colour of the blue image is restored. The inner image is dyed red with rhodamine and the image on the other side of the support is dyed yellow with thioflavine. A sound track may be provided in one of the colours of the component images, or may be protected after development with varnish so that a black and white sound track is obtained.
Patent GB-203375-A (GB)
Title: Improvements in mechanism for driving spinning spindles
IPC: D01H1/243
Filed: 1922-06-01
Abstract: 203,375. Leslie, J. C. June 1, 1922, Addition to 171,274. Spindle-driving apparatus; stop-apparatus, non - automatic. - In the arrangement descibad in the parent specification, wherein spindles, which project below the neck rail and are not provided with footsteps, are driven by friction discs, the driving-surfaces of the discs are conical and the disc g is carried by a cup e, which is splined on the spindle a and moved longitudinally thereof against a spring to stop the spindle by an incline m on a push rod k. The Provisional Specification describes a disc loaded with lead to ensure efficient contact with the driving-disc.
Patent GB-645505-A (GB)
Title: Improvements in receiving systems for carrier shift telegraphy
Inventor: PALMER CYRIL
IPC: H04L27/16
Filed: 1948-06-08
Abstract: 645,505. Radio signalling ; valve relay circuits. MINISTER OF SUPPLY. June 8, 1948, No. 15428. [Classes 40 (v) and 40 (vi)] In a frequency shift telegraphy receiver in which the "mark" frequency is oontinuously radiated when no intelligence is being transmitted a D.C. feed-back circuit connects an output of the frequency discriminator to a previous part to ensure the output voltage corresponding to a " mark " signal being substantially constant and independent of the " mark " frequency over a range of frequencies. Using a frequency shift of 850 c.p.s. a drift in input frequency of Œ3 kc/s. is permissible. In Fig. 3 the output of a phase shift discriminatordetector DD1, taken from the cathode connected end of load-resistor R4 is applied through a filter to a high gain D.C. amplifier valve V2 with neon tube stabilized cathode bias preventing negative feed-back, and an anode circuit derived D.C. voltage is fed back to the end of load resistor R3 connected to the cathode of the other diode, the resistors being in series with the centre-frequency-tuned circuit L1, C4 connected across the anodes. The D.C. feed-back circuit may comprise a resistor and shunted diode feeding a byepass condenser and through a resistor and condenser smoothing circuit, the grid of a cathode follower valve between the cathode and a cathode load tapping of which a fraction of the D.C. input is derived. The diode is blocked during " space " signals to prevent the latter influencing the D.C. control circuit but is unblocked by " mark " signals to permit control by the mean voltage of the latter. The D.C. amplifier valve V2 also feeds through double-clipping (slicer) valves V3, V4, both grids of cathode coupled valves V5, V6 arranged to energize alternatively relay coil L1 or L2. Negative-going " mark signals from the anode of valve V4 cause shunt diode D2 to conduct so that equal voltages are applied to the grids of valves V5, V6 and, due to the additional cathode resistor R17 of valve V6, valve V5 only mainly conducts. Positivegoing " space " pulses however, due to the long time constant (4 seconds) of the resistor R14 and condenser C8 in the grid circuit of valve V5 (the diode D2 then being blocked), cause only valve V6 to conduct. A resistor R18 shunting the anode circuit of valve V6 produces a biassing current through coil L2 allowing for the residual current through valve V6 during a " mark " signal.
Patent GB-462431-A (GB)
Title: An improved concrete pipe moulding machine
IPC: B28B21/26
Filed: 1936-06-04
Abstract: 462,431. Moulding concrete pipes. NORMAN, J. W. E. June 4, 1936, No. 15621. [Class 87 (ii)] In machines for insulating concrete pipes wherein gravity-fed concrete is consolidated and moulded in a shell 6 by a verticallymovable rotating plug 17 mounted on a shaft 19 carrying an electric motor 21, " whip " is prevented from taking place in the shaft 19 by a floating yoke 23 carried by the shaft and guided in the vertical columns 2 of the framework. The movement of the yoke is limited by stops 24, 25. The weight of the plug, shaft, and electric motor is counterweighted, as is also the weight of a handoperated table 9 for centring the mould 6. The machine may be used for moulding spigotended pipes, a mould 6, Fig. 3, having a belled base 34 and an inner base ring 35 then being used. The plug 17 having the usual inclined presser elements 33 is lowered on to the ring 35 and concrete enters the spigot space where it is consolidated by an electrically-operated vibrator 36 detachably mounted on the base 34.
Patent GB-834050-A (GB)
Title: Improvements in luggage carriers for vehicles
IPC: B60R9/058
Filed: 1957-05-17
Abstract: 834,050. Luggage racks for vehicles. PETERS, E. F., and PETERS, H. G. C., [trading as FRANK BROS.]. May 16, 1958 [May 17, 1957], No. 15706/57. Class 103(2) A tubular metal leg 1 of a vehicle roof rack has inserted in its lower end a TFoot 2, the crosspiece of which rests in the vehicle gutter. The rack is secured to the gutter by rotation of the top 7 of a bolt 5 which slides through a bush 4 welded to the leg 1 and which has secured thereon a hook 6 for engaging the gutter.
Patent GB-1137707-A (GB)
Title: Frequency discriminator and detector unit
IPC: H04L27/144
Filed: 1966-04-12
Abstract: 1,137,707. Frequency discriminators; switching circuits. INTERNATIONAL BUSINESS MACHINES CORP. 12 April, 1966 [15 April, 1965], No. 15817/66. Headings H3A and H3T. A discriminator for receiving frequencyshift data transmissions comprises two transformers 397, 402 the primaries of which are tuned to the two carrier frequencies and the secondaries of which are connected to full-wave rectifier circuits, the outputs of which are subtracted and fed to a low-pass filter 433, 435 for removing the carrier frequency, and then to a semi-conductor switching circuit. The output of the filter is applied to a cascade pair of switching transistors 439, 440 to give a binary voltage level at 480 depending on which carrier frequency is present at the input. A cross-coupled pair of transistors 425, 431 forms a buffer amplifier between the discriminator output and the filter, and the baseemitter drops of the transistors 425 and 439 are matched to ensure that transistor 439 switches at the mid-point of the voltage changes of the detected signal, thus providing equal mark-to-space ratio at the output 480. The base of transistor 439 and the output of the upper diode bridge are taken to the same reference level to equalize the base potentials of transistors 425 and 439 when no signal is being received. The input signals are applied to the discriminator through an inverting amplifier comprising transistors 380, 386 one or other of which conducts depending on the polarity of the input signal. The circuit is used in the frequency-shift data transmission system of Specification 1,137,705.
Patent GB-585711-A (GB)
Title: Treatment of halogenated polymerisation products of ethylene
IPC: C08K3/22
Filed: 1944-08-18
Abstract: Halogenated solid polymers and interpolymers of ethylene are cured by heating, if desired under pressure, with sulphur and a Group II metal oxide and preferably also a rubber vulcanization accelerator and/or filler, e.g. carbon black, to a temperature of at least 100 DEG  C. for at least 15 minutes.  Metal oxides specified are zinc, magnesium, calcium and barium oxides.  The vulcanization accelerator may be 2-mercaptothiazoline, piperidinium pentamethylenedithiocarbamate, mercaptobenzothiazole, diphenylguanidine, benzothiazyl disulphide, tetramethyl and tetraethyl thiuram disulphides, tetramethylthiuram monosulphide, tetramethyl-, tetraethyl-, tetrabutyl-, dipentamethylene-, di-(phenylmethyl)- and di-(phenylethyl)- thiuram tetrasulphides. The thiuram tetrasulphides liberate sulphur during the curing process and their use renders the presence of additional sulphur unnecessary.  Antioxidants, lubricants, e.g. stearic acid, stabilizers, rosin, hydrogen chloride, inhibitors, e.g. potassium hydroxide and calcium phosphate, and blowing agents may be added. The interpolymers may be formed from mono-olefines, vinyl and vinylidene compounds, e.g. vinyl acetate or unsaturated acid esters. Specifications 471,590, 481,515, 492,322, 497,643 and U.S.A. Specifications 1,634,925 and 1,681,717 are referred to.
Patent GB-865742-A (GB)
Title: Improvements in the treatment of refractory metals
IPC: C22B34/24
Filed: 1959-05-08
Abstract: Niobium and/or tantalum deposited on dissimilar surfaces is reacted with H2 to form a brittle expanded hydride, when the deposits fall away, or may be readily removed, from the surfaces. The metal is heated to 800 DEG -1000 DEG C., either in an H2 atmosphere, or in an inert atmosphere or vacuum with subsequent introduction of H2, and then in both cases is allowed to cool in an H2 atmosphere.  The reaction may be under atmospheric or super-atmospheric pressure.  The process may be used for removing metal deposited on walls and rods, plates, spheres, or crystals of, e.g. stainless steel or fused silica in the reduction of metal halide, e.g. TaCl5 and NbCl5, with H2 in a heated reactor, e.g. at 800-1000 DEG  C.  In this application the H2 feed is merely continued during cooling. The hydride may be converted to metal by heating at 800-900 DEG  C. while exhausting H2 from the converter, or purging with an inert gas.ALSO:Niobium and/or tantalum deposited on dissimilar surfaces is reacted with H2 to form a brittle expanded hydride, when the deposits fall away, or may be readily removed, from the surfaces. The metal is heated to 800 DEG -1000 DEG C, either in an H2 atmosphere, or in an inert atmosphere or vacuum with subsequent introduction of H2, and then in both cases is allowed to cool in an H2 atmosphere.  The reaction may be under atmospheric or superatmospheric pressure.  The process may be used for removing metal deposited on walls and rods, plates, spheres, or crystals of e.g. stainless steel or fused silica in the reduction of metal halide, e.g. TaCl5 and NbCl5 with H2 in a heated reactor e.g. at 800-1000 DEG C.  In this application the H2 feed is merely continued during cooling. The hydride may be converted to metal by heating at 800-900 DEG C while exhausting H2 from the converter, or purging with an inert gas.
Patent GB-112140-A (GB)
Title: Improvements in Aeroplane Control Mechanism.
Inventor: GERREBOS ALBERT CHARLES
IPC: B64C13/00
Filed: 1916-11-07
Abstract: 112,140. Gerrebos, A. C., and Goossens, H. Nov. 7, 1916. Steering and balancing.-The three controls of an aeroplane are connected to a single mechanism capable of movement about three axles at rightangles to one another and adapted to be operated by hand or foot at will. A detachable handle G is secured to a tubular frame F pivoted with interposed ball bearings B, B about vertical tubes IT carried by a phosphor-bronze yoke-piece CP which is pivoted on a bolt CB passing through a longitudinal rotary tube W T to which the lateral balancing control is connected. Transverse members D, supported by the frame F and by brackets T, carry pedals P which are also supported by fore and aft stays S provided with holes to enable the position of the pedals to be adjusted. The elevator cables are connected to the frame at the points E, and the rudder cables at the points R, C.
Patent GB-891226-A (GB)
Title: Improvements in fittings for windows of the sliding sash counter-balanced type
IPC: E06B3/44
Filed: 1958-05-19
Abstract: 891,226. Counter-balanced sash windows. JOHNSTON, J. W. Aug. 17, 1959 [May 19, 1958], No. 15949/58. Class 20(3) [Also in Group XXV] In a sliding sash the end of a cord 12, Fig. 2, attached at the other end to a balance weight is attached to the sash by a socket member 10 secured to a base plate 7 with holes 8 for securing it to the sash by screws and the socket is closed at one end except for a hole 11 through which the cord is threaded and knotted and the knot housed by the socket. In the case of lifting and lowering cords of a sash a pair of opposing sockets each accommodate one end knot, Fig. 5.
Patent GB-1422568-A (GB)
Title: Elevator control apparatus
IPC: B66B1/46
Filed: 1973-04-03
Abstract: 1422568 Control of elevators HITACHI Ltd 3 April 1973 [5 April 1972] 15955/73 Heading B8L In a high speed lift selector; in which synchronizer 5 driven at a reduced scale speed carries an advancer which moves relative to the synchronizer to stop at the next hall call ahead and during its movement controls lift acceleration, deceleration being controlled as the synchronizer moves to catch up with the advancer; to increase the possible car speed range, the advancer 7, Fig. 4, carries oscillators 42U, 42D, spaced on either side of the advancer symmetry line by substantially the maximum possible advancer-synchronizer displacement, see Fig. 2 (not shown), hall calls from more remote floors than those detectable using central advancer oscillators 13U, 13D being thus detected, oscillators 42U, 42D controlling car movement towards higher maximum speeds provided no closer hall call is detected using oscillators 13U, 13D, during advancer movement to its extreme position. Car acceleration.-As advancer 7 moves ahead, frame mounted plates 43 interfere with an oscillator feedback, Fig. 7 (not shown), a logic circuit, {waveforms, Fig. 8 (not shown)} causes sequential energization of relays (21F- 29F), Fig. 10 (not shown), controlling lift acceleration. If during advancer movement, no more remote call is detected by oscillator 42U, relays (30F-33F) are also enabled, and control the highest steps of acceleration. Car deceleration (a) From higher speeds.- Provided oscillator 36 on the advancer is opposed by receiver (38 UL), Fig. 5 (not shown), on the receiver, indicating that the advancer is at the limit of its travel, deceleration is controlled by means of frame mounted oscillators 41XU, 41XD, one for each floor and direction of motion, and enabled when a corresponding hall call is registered, and sets (41GU1-41GUn, 41GD1-41GDn), Fig. 6 (not shown), of synchronizer mounted receivers causing car deceleration in " n " steps to reach the lower speed range where deceleration is controlled as below. (b) From lower speeds.-Upon arrival of the advancer at a floor at which a hall call is registered, the advancer is stopped and locked in position by electromagnet controlled interlocking arrangement 29, 33, oscillator 36 interacting with successive receivers (38U9-38U1, Fig. 5) controlling deceleration of the car as the synchronizer approaches the floor. It is stated that, using the above scheme of control, higher speeds, with a greater number of accelerationdeceleration steps can be accommodated without undue increase in selector length.